diff --git a/apps/desktop/src/shared/api.ts b/apps/desktop/src/shared/api.ts
index b5ecc91..fd0f8ca 100644
--- a/apps/desktop/src/shared/api.ts
+++ b/apps/desktop/src/shared/api.ts
@@ -235,9 +235,7 @@ export interface PluginModelDescriptor {
   description: string | null;
   icon: string;
   providerType: string;
-  contextWindowTokens: number | null;
   maxOutputTokens: number | null;
-  thinking: boolean;
   images: boolean;
 }
 
diff --git a/server/plugins/build-in/codex-auth/codex_test.ts b/server/plugins/build-in/codex-auth/codex_test.ts
index 91bebeb..b572cdd 100644
--- a/server/plugins/build-in/codex-auth/codex_test.ts
+++ b/server/plugins/build-in/codex-auth/codex_test.ts
@@ -164,7 +164,10 @@ Deno.test("official model discovery excludes hidden models and puts the default
         display_name: "GPT First",
         supported_in_api: true,
         visibility: "list",
-        supported_reasoning_efforts: ["low", "medium"],
+        supported_reasoning_levels: [
+          { effort: "low", description: "Fast responses" },
+          { effort: "medium", description: "Balanced" },
+        ],
       },
       { slug: "gpt-second", supported_in_api: true, visibility: "list" },
       { slug: "gpt-hidden", supported_in_api: true, visibility: "hidden" },
@@ -172,7 +175,7 @@ Deno.test("official model discovery excludes hidden models and puts the default
     ],
   });
   assertEquals(models.map((model) => model.id), ["gpt-second", "gpt-first"]);
-  assertEquals(models[1].capabilities, { thinking: true, images: true });
+  assertEquals(models[1].capabilities, { images: true });
   assertEquals(models[1].privateData, { reasoningEfforts: ["low", "medium"] });
 });
 
diff --git a/server/plugins/build-in/codex-auth/models.ts b/server/plugins/build-in/codex-auth/models.ts
index 8703a7b..07f364c 100644
--- a/server/plugins/build-in/codex-auth/models.ts
+++ b/server/plugins/build-in/codex-auth/models.ts
@@ -24,7 +24,11 @@ function positiveInteger(value: unknown): number | null {
 }
 
 function parseReasoningEfforts(model: Record<string, unknown>): string[] {
-  const source = model.supported_reasoning_efforts ??
+  const source = model.supported_reasoning_levels ??
+    model.supportedReasoningLevels ??
+    model.reasoning_levels ??
+    model.reasoningLevels ??
+    model.supported_reasoning_efforts ??
     model.supportedReasoningEfforts ??
     model.reasoning_efforts ??
     model.reasoningEfforts;
@@ -61,10 +65,6 @@ export function parseOfficialModels(body: unknown): ModelDefinition[] {
     seen.add(id);
     const efforts = parseReasoningEfforts(model);
     const description = text(model.description);
-    const contextWindowTokens = positiveInteger(
-      model.context_window_tokens ?? model.contextWindowTokens ?? model.context_window ??
-        model.contextWindow,
-    );
     const maxOutputTokens = positiveInteger(
       model.max_output_tokens ?? model.maxOutputTokens ?? model.max_completion_tokens ??
         model.maxCompletionTokens,
@@ -74,9 +74,8 @@ export function parseOfficialModels(body: unknown): ModelDefinition[] {
       displayName: text(model.display_name ?? model.displayName ?? model.title ?? model.name) ??
         id,
       ...(description ? { description } : {}),
-      ...(contextWindowTokens !== null ? { contextWindowTokens } : {}),
       ...(maxOutputTokens !== null ? { maxOutputTokens } : {}),
-      capabilities: { thinking: efforts.length > 0, images: true },
+      capabilities: { images: true },
       privateData: { reasoningEfforts: efforts },
     });
   }
diff --git a/server/plugins/build-in/grok-auth/grok_test.ts b/server/plugins/build-in/grok-auth/grok_test.ts
index 13f0fc7..0907554 100644
--- a/server/plugins/build-in/grok-auth/grok_test.ts
+++ b/server/plugins/build-in/grok-auth/grok_test.ts
@@ -160,9 +160,8 @@ Deno.test("model discovery parses both language-models and standard list shapes"
   });
   assertEquals(richModels.map((model) => model.id), ["grok-4", "grok-3-mini"]);
   assertEquals(richModels[0].displayName, "Grok 4");
-  assertEquals(richModels[0].contextWindowTokens, 256_000);
-  assertEquals(richModels[0].capabilities, { thinking: false, images: true });
-  assertEquals(richModels[1].capabilities, { thinking: false, images: false });
+  assertEquals(richModels[0].capabilities, { images: true });
+  assertEquals(richModels[1].capabilities, { images: false });
 
   const plainModels = parseGrokModels({ data: [{ id: "grok-4-fast" }] });
   assertEquals(plainModels.map((model) => model.id), ["grok-4-fast"]);
diff --git a/server/plugins/build-in/grok-auth/models.ts b/server/plugins/build-in/grok-auth/models.ts
index a83a145..a50a13c 100644
--- a/server/plugins/build-in/grok-auth/models.ts
+++ b/server/plugins/build-in/grok-auth/models.ts
@@ -9,12 +9,12 @@ export const FALLBACK_MODELS: ModelDefinition[] = [
   {
     id: "grok-4.6",
     displayName: "Grok 4.6",
-    capabilities: { thinking: false, images: true },
+    capabilities: { images: true },
   },
   {
     id: "grok-4.5",
     displayName: "Grok 4.5",
-    capabilities: { thinking: false, images: true },
+    capabilities: { images: true },
   },
 ];
 
@@ -28,15 +28,6 @@ function text(value: unknown): string | null {
   return typeof value === "string" && value.trim() ? value.trim() : null;
 }
 
-function positiveInteger(value: unknown): number | null {
-  const parsed = typeof value === "number"
-    ? value
-    : typeof value === "string"
-    ? Number(value)
-    : NaN;
-  return Number.isFinite(parsed) && parsed > 0 ? Math.floor(parsed) : null;
-}
-
 function modalities(value: unknown): string[] {
   return Array.isArray(value)
     ? value.flatMap((item) => (typeof item === "string" ? [item.toLowerCase()] : []))
@@ -66,15 +57,10 @@ export function parseGrokModels(body: unknown): ModelDefinition[] {
     if (!id || seen.has(id)) continue;
     seen.add(id);
     const inputs = modalities(model?.input_modalities ?? model?.inputModalities);
-    const contextWindowTokens = positiveInteger(
-      model?.context_window ?? model?.contextWindow ?? model?.max_prompt_length,
-    );
     models.push({
       id,
       displayName: displayName(id),
-      ...(contextWindowTokens !== null ? { contextWindowTokens } : {}),
       capabilities: {
-        thinking: false,
         images: inputs.length === 0 || inputs.includes("image"),
       },
     });
diff --git a/server/src/control/service.rs b/server/src/control/service.rs
index a379059..5c3fa02 100644
--- a/server/src/control/service.rs
+++ b/server/src/control/service.rs
@@ -392,7 +392,6 @@ impl ControlService {
         if model_hash.starts_with(crate::plugin::ADAPTER_ID_PREFIX) {
             let descriptor = self.plugins.model_descriptor(model_hash).await?;
             model.display_name = Some(descriptor.display_name);
-            model.context_window_tokens = descriptor.context_window_tokens;
             model.max_output_tokens = Some(descriptor.max_output_tokens.unwrap_or(65_536));
         } else {
             let configured = self
diff --git a/server/src/cursor/services/model_catalog.rs b/server/src/cursor/services/model_catalog.rs
index 4c088dd..eb82f87 100644
--- a/server/src/cursor/services/model_catalog.rs
+++ b/server/src/cursor/services/model_catalog.rs
@@ -580,14 +580,9 @@ fn available_plugin_model(model: &PluginModelDescriptor) -> AvailableModel {
     let tooltip = TooltipData {
         markdown_content: model.description.clone(),
     };
-    let contexts = context_options(model.context_window_tokens);
-    let variants = model_variants(
-        &model.id,
-        &model.display_name,
-        &tooltip,
-        &contexts,
-        model.thinking,
-    );
+    // Effort 与上下文档位由宿主统一提供,与内置模型一致;插件不再声明这两项。
+    let contexts = context_options(None);
+    let variants = model_variants(&model.id, &model.display_name, &tooltip, &contexts, true);
     let legacy_slugs = variants
         .iter()
         .filter_map(|variant| variant.legacy_slug.clone())
@@ -598,7 +593,7 @@ fn available_plugin_model(model: &PluginModelDescriptor) -> AvailableModel {
         supports_agent: Some(true),
         degradation_status: Some(0),
         tooltip_data: Some(tooltip.clone()),
-        supports_thinking: Some(model.thinking),
+        supports_thinking: Some(true),
         supports_images: Some(model.images),
         supports_max_mode: Some(false),
         client_display_name: Some(model.display_name.clone()),
@@ -610,7 +605,7 @@ fn available_plugin_model(model: &PluginModelDescriptor) -> AvailableModel {
         inputbox_short_model_name: Some(model.display_name.clone()),
         supports_sandboxing: Some(true),
         supports_cmd_k: Some(false),
-        parameter_definitions: model_parameters(&contexts, model.thinking),
+        parameter_definitions: model_parameters(&contexts, true),
         variants,
         legacy_slugs,
         named_model_section_index: Some(1),
@@ -633,7 +628,7 @@ fn usable_plugin_model(model: &PluginModelDescriptor) -> agent::ModelDetails {
         display_model_id: model.id.clone(),
         display_name: model.display_name.clone(),
         display_name_short: model.display_name.clone(),
-        thinking_details: model.thinking.then(agent::ThinkingDetails::default),
+        thinking_details: Some(agent::ThinkingDetails::default()),
         ..Default::default()
     }
 }
diff --git a/server/src/plugin/descriptor.rs b/server/src/plugin/descriptor.rs
index 89ac1b0..2ac33dd 100644
--- a/server/src/plugin/descriptor.rs
+++ b/server/src/plugin/descriptor.rs
@@ -107,9 +107,7 @@ pub struct PluginModelDescriptor {
     pub description: Option<String>,
     pub icon: String,
     pub provider_type: String,
-    pub context_window_tokens: Option<u64>,
     pub max_output_tokens: Option<u64>,
-    pub thinking: bool,
     pub images: bool,
 }
 
@@ -209,9 +207,7 @@ impl PluginModelDescriptor {
             description: model.description.clone(),
             icon: icon.to_owned(),
             provider_type: provider.provider_type.clone(),
-            context_window_tokens: model.context_window_tokens,
             max_output_tokens: model.max_output_tokens,
-            thinking: model.thinking,
             images: model.images,
         }
     }
diff --git a/server/src/plugin/sdk/model.ts b/server/src/plugin/sdk/model.ts
index a3fef0d..ac45f5e 100644
--- a/server/src/plugin/sdk/model.ts
+++ b/server/src/plugin/sdk/model.ts
@@ -2,7 +2,6 @@ import type { JsonValue, PluginContext } from "./plugin.ts";
 import type { ResourceSnapshot } from "./resource.ts";
 
 export type ModelCapabilities = {
-  thinking?: boolean;
   images?: boolean;
 };
 
@@ -10,7 +9,6 @@ export type ModelDefinition = {
   id: string;
   displayName: string;
   description?: string;
-  contextWindowTokens?: number;
   maxOutputTokens?: number;
   capabilities?: ModelCapabilities;
   /** 之后的调用原样传回;永远不会展示给用户。 */
diff --git a/server/src/plugin/state.rs b/server/src/plugin/state.rs
index bea37bc..f344961 100644
--- a/server/src/plugin/state.rs
+++ b/server/src/plugin/state.rs
@@ -135,12 +135,8 @@ pub struct StoredModel {
     #[serde(default)]
     pub description: Option<String>,
     #[serde(default)]
-    pub context_window_tokens: Option<u64>,
-    #[serde(default)]
     pub max_output_tokens: Option<u64>,
     #[serde(default)]
-    pub thinking: bool,
-    #[serde(default)]
     pub images: bool,
     #[serde(default)]
     pub private_data: serde_json::Value,
@@ -179,13 +175,9 @@ impl StoredModel {
                 .get("description")
                 .and_then(serde_json::Value::as_str)
                 .map(str::to_owned),
-            context_window_tokens: object
-                .get("contextWindowTokens")
-                .and_then(serde_json::Value::as_u64),
             max_output_tokens: object
                 .get("maxOutputTokens")
                 .and_then(serde_json::Value::as_u64),
-            thinking: capability("thinking"),
             images: capability("images"),
             private_data: object
                 .get("privateData")
@@ -200,9 +192,8 @@ impl StoredModel {
             "id": self.id,
             "displayName": self.display_name,
             "description": self.description,
-            "contextWindowTokens": self.context_window_tokens,
             "maxOutputTokens": self.max_output_tokens,
-            "capabilities": { "thinking": self.thinking, "images": self.images },
+            "capabilities": { "images": self.images },
             "privateData": self.private_data,
         })
     }
@@ -450,7 +441,7 @@ mod tests {
         let model = StoredModel::from_definition(&serde_json::json!({
             "id": "gpt-test",
             "displayName": "GPT Test",
-            "capabilities": {"thinking": true},
+            "capabilities": {"images": true},
             "privateData": {"reasoningEfforts": ["low"]},
         }))
         .unwrap();
@@ -460,7 +451,7 @@ mod tests {
             .unwrap();
         let models = store.models("dev.example", "codex").await.unwrap();
         assert_eq!(models.len(), 1);
-        assert!(models[0].thinking);
+        assert!(models[0].images);
         assert_eq!(models[0].private_data["reasoningEfforts"][0], "low");
     }
 }
diff --git a/server/src/provider/router.rs b/server/src/provider/router.rs
index 7b501de..75dda91 100644
--- a/server/src/provider/router.rs
+++ b/server/src/provider/router.rs
@@ -67,9 +67,6 @@ impl Provider for ProviderRouter {
                     recorder.request(serde_json::json!({}), &crate::plugin::plugin_llm_request(&invocation)?).await?;
                     let mut routed = invocation.clone();
                     routed.request.model.display_name = Some(plan.model.display_name.clone());
-                    if let Some(tokens) = plan.model.context_window_tokens {
-                        routed.request.model.context_window_tokens.get_or_insert(tokens);
-                    }
                     if let Some(tokens) = plan.model.max_output_tokens {
                         routed.request.model.max_output_tokens.get_or_insert(tokens);
                     }
diff --git a/server/src/run/compaction.rs b/server/src/run/compaction.rs
index c382db6..e97e415 100644
--- a/server/src/run/compaction.rs
+++ b/server/src/run/compaction.rs
@@ -2,9 +2,7 @@
 
 use std::collections::HashSet;
 
-use crate::model::{
-    CanonicalMessage, LlmCallUsageAnchor, PreparedRun, ProjectedMessage, RunAction,
-};
+use crate::model::{CanonicalMessage, LlmCallUsageAnchor, PreparedRun, ProjectedMessage};
 
 const FALLBACK_CHARS: usize = 12_000;
 
@@ -34,9 +32,6 @@ pub(super) fn should_compact(
     projected_messages: &[ProjectedMessage],
     anchor: Option<ContextUsageAnchor>,
 ) -> bool {
-    if prepared.action != RunAction::Start {
-        return false;
-    }
     let Some(context_window) = prepared.model.context_window_tokens else {
         return false;
     };
@@ -113,15 +108,15 @@ fn estimate_serialized_tokens(serialized: &str) -> u64 {
 mod tests {
     use super::*;
     use crate::model::{
-        project_messages, CheckpointId, ConversationId, ModelSpec, Origin, PromptSpec, Role, RunId,
-        RunKind,
+        project_messages, CheckpointId, ConversationId, ModelSpec, Origin, PromptSpec, Role,
+        RunAction, RunId, RunKind,
     };
 
     #[test]
-    fn automatic_compaction_starts_only_after_the_context_window_is_exceeded() {
+    fn automatic_compaction_runs_for_start_and_resume_actions_after_the_limit() {
         let mut model = ModelSpec::new("model");
         model.context_window_tokens = Some(200_000);
-        let prepared = PreparedRun {
+        let mut prepared = PreparedRun {
             run_id: RunId::new("run"),
             cursor_request_id: None,
             conversation_id: ConversationId::new("conversation"),
@@ -169,5 +164,15 @@ mod tests {
             &projected,
             anchor(200_001)
         ));
+
+        prepared.action = RunAction::Resume {
+            pending_tool_round: None,
+        };
+        assert!(should_compact(
+            &prepared,
+            &messages,
+            &projected,
+            anchor(200_001)
+        ));
     }
 }
diff --git a/server/src/run/engine.rs b/server/src/run/engine.rs
index 28558d3..54ca793 100644
--- a/server/src/run/engine.rs
+++ b/server/src/run/engine.rs
@@ -170,7 +170,7 @@ impl RunEngine {
                 Ok(messages) => messages,
                 Err(error) => return (RunOutcome::Failed(error.into()), usage),
             };
-            let context_anchor = if !auto_compacted && prepared.action == RunAction::Start {
+            let context_anchor = if !auto_compacted {
                 match self
                     .store
                     .latest_llm_call_usage_anchor(